This articles presents an extension for BPMN (Business Process Model and Notation) towards the modeling of NFRs. A key feature is the tool independent representation of NFRs, which will be achieved by applying the widely used WS-Policy standard. Our approach also covers the mapping of the specified NFRs to the technical level represented by BPEL (Business Process Execution Language). For the monitoring of NFRs we exploit techniques from Complex Event Processing (CEP). A key characteristic of our solution is its coherence: from NFRs modeling at design level to their technical enforcement and dynamic validation during execution. The feasibility of our approach has been demonstrated by a proof of concept implementation based on NetBeans, Glassfish ESB, IEP as CEP implementation, and the BPEL Service Engine.
Modern software development approaches like Agile and Scrum support a strong collaboration between all member of the software development team, software testers and business analysts included. Even if you don’t use a method like Behavior-Driven Development (BDD) or Specification by Example, checking the fact that you will be able to actually test your requirements is […]
User stories are a technique taken from the agile development playbook that can easily be applied in traditional systems development and maintenance. User stories help you document needs in a structured way, from the users’ perspective. They’re a good basis for test cases, so as to support integrated requirements management and testing. In this article, […]
This article is an extract of the “Complete Systems Analysis” written by James and Suzanne Robertson. It explains the basics of analysis models and emphasize that the important thing to remember is that modeling tools are complementary. Each shows one aspect of the system. Together, they make a complete working model of the system.